To correctly integrate with busybox in our system, we should add
'stat' to base_bindir_progs so that the 'stat' commands from busybox
and coreutils both register to /bin/stat.
Previously there was a patch in busybox to move 'stat' to /usr/bin.
But as we can easily solve this integration problem by modifying the
coreutils recipe, this patch has been removed. After all, maintaining
a patch that's not accepted by upsteam should not be our No.1 choice.